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Continue reading →: Exploring JWT Token Validation Strategies in Keycloak
Introduction JSON Web Tokens (JWT) have become popular for securing APIs and managing user authentication and authorization. Understanding the structure of a JWT token is crucial for implementing secure authentication and authorization mechanisms. A JSON Web Token (JWT) is a compact, URL-safe token format that securely transmits information between parties.…
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Continue reading →: Handling Invalid DNS Responses in Nginx: A Guide
When configuring Nginx for DNS resolution, it’s crucial to understand how it handles invalid responses from DNS servers. Ensuring your Nginx setup can gracefully manage DNS errors can significantly improve the reliability and resilience of your web services. In this post, we’ll delve into Nginx’s behavior when it encounters invalid…
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Continue reading →: Understanding the Nginx Resolver with Multiple Name Servers
When configuring the Nginx resolver, specifying multiple name servers in the resolver directive is a common practice to ensure redundancy and reliability. This setup allows Nginx to continue resolving domain names even if one or more DNS servers become unavailable. How Does the Nginx Resolver Work with Multiple Name Servers?…
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Continue reading →: Understanding Nginx Resolver Cache
The Nginx resolver cache is an important feature that helps to improve the performance and reliability of DNS lookups performed by Nginx. When Nginx needs to resolve domain names into IP addresses, it can cache the DNS responses for a certain period. This caching mechanism reduces the number of DNS…
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Continue reading →: Understanding the Nginx Resolver
Nginx, a high-performance HTTP server and reverse proxy, includes a feature called the resolver. The resolver is crucial for situations where Nginx needs to perform DNS lookups, such as when proxying requests to upstream servers defined by domain names instead of IP addresses. Understanding how to configure the resolver can…
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Continue reading →: Understanding CoreDNS in Kubernetes
Introduction Kubernetes has become the go-to platform for orchestrating containerized applications. One of its crucial components is DNS resolution, which ensures that services and pods within a cluster can easily find and communicate with each other. CoreDNS, the default DNS provider in Kubernetes, plays a vital role in this process.…
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